runtime(doc): Updating the examples in the xxd manpage

closes: #15508

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>

Author: RestorerZ

runtime/doc/xxd.1

@@ -311,7 +311,7 @@ Patch the date in the file xxd.1
 .br
 \fI% xxd \-s 0x33 \-l 13 \-c 13 xxd.1\fR
 .br
-0000033: 3235 7468 204d 6179 2031 3939 36  25th May 1996
+00000033: 3235 7468 204d 6179 2031 3939 36  25th May 1996
 .PP
 .br
 Create a 65537 byte file with all bytes 0x00,
@@ -324,11 +324,11 @@ Hex dump this file with autoskip.
 .br
 \fI% xxd \-a \-c 12 file\fR
 .br
-0000000: 0000 0000 0000 0000 0000 0000  ............
+00000000: 0000 0000 0000 0000 0000 0000  ............
 .br
 *
 .br
-000fffc: 0000 0000 41                   ....A
+0000fffc: 0000 0000 41                   ....A
 .PP
 Create a 1 byte file containing a single 'A' character.
 The number after '\-r \-s' adds to the line numbers found in the file;

runtime/doc/xxd.man

@@ -206,25 +206,25 @@ EXAMPLES
 
        Display just the date from the file xxd.1
        % xxd -s 0x33 -l 13 -c 13 xxd.1
-       0000033: 3231 7374 204d 6179 2031 3939 36  21st May 1996
+       00000033: 3231 7374 204d 6179 2031 3939 36  21st May 1996
 
        Copy input_file to output_file and prepend 100 bytes of value 0x00.
        % xxd input_file | xxd -r -s 100 > output_file
 
        Patch the date in the file xxd.1
        % echo "0000034: 3574 68" | xxd -r - xxd.1
        % xxd -s 0x33 -l 13 -c 13 xxd.1
-       0000033: 3235 7468 204d 6179 2031 3939 36  25th May 1996
+       00000033: 3235 7468 204d 6179 2031 3939 36  25th May 1996
 
        Create  a  65537 byte file with all bytes 0x00, except for the last one
        which is 'A' (hex 0x41).
        % echo "010000: 41" | xxd -r > file
 
        Hex dump this file with autoskip.
        % xxd -a -c 12 file
-       0000000: 0000 0000 0000 0000 0000 0000  ............
+       00000000: 0000 0000 0000 0000 0000 0000  ............
        *
-       000fffc: 0000 0000 41                   ....A
+       0000fffc: 0000 0000 41                   ....A
 
        Create a 1 byte file containing a single 'A' character.  The number af‐
        ter  '-r -s' adds to the line numbers found in the file; in effect, the